package com.example.design.facade;

/**
 * 音箱系统
 */
public class SoundSystem {
    public void on() {
        System.out.println("Sound System is on");
    }
    public void setVolume(int level) {
        System.out.println("Setting volume to " + level);
    }
    public void off() {
        System.out.println("Sound System is off");
    }
}
